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1.1 Porcelain enamel coatings are applied to metals to provide protection from corrosion as well as to enhance their appearance. This test method permits the easy detection of discontinuities and areas of light coverage, not readily seen by visual inspection, which limit the protection to the substrate. Somewhat similar tests applicable to the thicker glass coatings used for chemical reaction vessels are found in Test Methods C536 and C537.
1.2 Values stated in SI units are to be regarded as the standard. Inch-pound units are provided for information only.
1.3 This standard does not purport to address all of the safety problems, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
C536 Test Method for Continuity of Coatings in Glassed Steel Equipment by Electrical Testing
C537 Test Method for Reliability of Glass Coatings on Glassed Steel Reaction Equipment by High Voltage
ICS Number Code 25.220.50 (Enamels)
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ASTM C743-87(2014)e1, Standard Test Method for Continuity of Porcelain Enamel Coatings, ASTM International, West Conshohocken, PA, 2014, www.astm.orgBack to Top